guanchao / GHDownload

android下载框架，支持单线程和多线程断点下载。

GHDownload

一、How to use?

Step1:

String url = "http://gh-game.oss-cn-hangzhou.aliyuncs.com/1434794302961350.apk";
DownloadEntry entry = new DownloadEntry(url);
entry.name = "x三国.apk";

Step2: To start a downloading task:

DownloadManager.getInstance(MainActivity.this).add(entry);

To pausea downloading task:

DownloadManager.getInstance(MainActivity.this).pause(entry);

To resume downloading task:

DownloadManager.getInstance(MainActivity.this).resume(entry);

To resume cencel task:

DownloadManager.getInstance(MainActivity.this).cancel(entry);

Step3: If you want to receive process information of downloading task, you should add observer in current Class,for example, in MainActivity:

(1)Create a datawatcher to receive notification.

       private DataWatcher dataWatcher = new DataWatcher() {

		@Override
		public void onDataChanged(DownloadEntry data) {
			entry = data;
			showText.setText(entry.toString());
		}
	};

(2)Add observer.

    @Override
    protected void onResume() {
        super.onResume();
		DownloadManager.getInstance(this).addObserver(dataWatcher);
    }

(3)Remove observer.

    @Override
    protected void onPause() {
        super.onPause();
        DownloadManager.getInstance(this).removeObserver(dataWatcher);
    }

二、Set download config

In DownloadConfig.java You can set max downloading task and max downloading threads.

If you set max_download_threads to 1,it will use FileOutputStream instead of RandomAccessFile, which is faster. Otherwise, it will use RandomAccessFile.

private int max_download_tasks = 3;
private int max_download_threads = 3;
public static String DOWNLOAD_PATH = Environment.getExternalStorageDirectory() + File.separator +
    		"gh-download" + File.separator;

##备注： （1）该下载框架使用了ormlite框架

（2）如果使用生成的ghdownloadv1.2.jar作为引用的jar包，注意要把ormlite的jar包也一起引用

（3）在AndroidManifest.xml中要添加如下service：

<service android:name="com.gh.ghdownload.core.DownloadService" >